Home / 137,981.36-190,380.52-84,246.80

Finding the Fourth Proportional to 137,981.36, 190,380.52 and 84,246.80

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Solution

The fourth proportional to 137,981.36, 190,380.52 and 84,246.80 is: 116,239.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,981.36 : 190,380.52 = 84,246.80 : x
  2. Step 2: Convert to fraction form
    137,981.36/190,380.52 = 84,246.80/x
  3. Step 3: Cross multiply
    137,981.36x = 190,380.52 × 84,246.80
  4. Step 4: Simplify right side
    137,981.36x = 16,038,949,592.34
  5. Step 5: Solve for x
    x = 16,038,949,592.34/137,981.36
  6. Step 6: Final answer
    x = 116,239.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.